นิติอาภรณ์ ร. A Study of Classical Guitar Instructional Process for Adult Learners. Rangsit Music Journal, [S. l.], v. 11, n. 1, p. 108–122, 2018. Disponível em: https://so06.tci-thaijo.org/index.php/rmj/article/view/126996. Acesso em: 4 may. 2024.